CN107438521A - Print roller, particularly flexible printing roller - Google Patents
Print roller, particularly flexible printing roller Download PDFInfo
- Publication number
- CN107438521A CN107438521A CN201680014701.8A CN201680014701A CN107438521A CN 107438521 A CN107438521 A CN 107438521A CN 201680014701 A CN201680014701 A CN 201680014701A CN 107438521 A CN107438521 A CN 107438521A
- Authority
- CN
- China
- Prior art keywords
- section
- roller
- print roller
- outer roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/085—Cylinders with means for preventing or damping vibrations or shocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The present invention relates to a kind of print roller (10), particularly flexible printing print roller, its there is hollow outer roller (12) and be arranged in it is in outer roller (12), for by the prestress device (14) of prestress application (F), the outer roller has longitudinal axis (L), and the prestressing force has the force component being radially outward directed.At least two section (18) arranged according to the present invention, the section extends along longitudinal axis (L), the section is decoupled each other in circumferential direction, the section is arranged so that the flexural vibrations of print roller (10) cause the shearing motion between outer roller (12) and the section (18), and the section is connected with outer roller (12), the power for damping flexural vibrations to cause the shearing motion to cause, wherein, prestress device (14) is arranged for prestressing force (F) to be applied into the section (18).
Description
Technical field
The present invention relates to a kind of print roller, particularly flexible printing print roller, has (a) hollow outer roller, the outer roller
With longitudinal axis, and (b) be arranged in it is in the outer roller, for applying prestressed prestress device, the prestressing force
With the force component being radially outward directed.
Background technology
This print roller is as known in the A1 of DE 29 26 765 and applies in the printing machine for printing.Printing process
Carried out by way of multiple rollers mutually roll.According to printing process, respectively there is a roller, the roller be loaded with printing theme, ink or
Person's printed medium.Ink is transferred on medium according to printing theme in printing process.It is typically by polymer to print theme
The manufactured element with jog, the jog correspond to the negative image or positive image of figure to be printed according to printing process.
Cylinder is described in the T2 of DE 603 06 415, it includes outer barrel, inner cylinder and is arranged in the outer barrel and inner cylinder
Between the spacer being made up of carbon.Extra high rigidity is reached by the arrangement, this causes, and is produced in the case where machine rotates
Raw interference vibration is reduced.Resin can be added to further enhance rigidity in the gap of spacer, so as to embedding
Enter the spacer, the filling gap and the two cylinders is connected to each other without relative rotation, so as to not go out as desired
Existing shear action.It is so proposing, for reduce vibration principle due to carbon use and process be consuming and it is expensive.
A kind of rotating cylinder for processing machine is described in the A1 of DE 10 2,010 015 108, it is by outer barrel, interior
Cylinder or solid and the supporting arrangement structure being arranged between the outer barrel and inner cylinder or solid are formed.The supporting arrangement
Structure for stability reasons and dimensionally stable construct and power cooperation and/or shape-ordinatedly with outer barrel and inner cylinder or
Solid connects.Thus the rotating cylinder being achieved in that is lighter, but supporting arrangement in the case where not influenceing stability
Structure is to expend in manufacture and installation process.
A kind of vibration absorber of the resonance for rotary body is described in the B1 of DE 29 22 585.Vibration absorber
The intermediate layer being made up of damping material with multiple plates overlappingly stacked up and down and arrangement between the plates.Intermediate layer
Damping material so selected on its Shore hardness, to cause all plates to be shaken with the resonant frequency to be damped of rotary body
Dynamic, thus each plate reciprocally vibrates and the damping material in intermediate layer is compressed and is relaxed herein.This absorption of vibrations
Device must specifically be configured to damp the resonant frequency of selected body.Application on the body that other should reduce synchronous vibration needs
Carefully and with expending to design vibration absorber in advance.
Print roller can simplifiedly be considered as it is long, thin-walled, generally in the hollow cylinder of external support.The print roller is easy
Vibration effect by bending.By printing the jog in theme, print roller swashs by wideband in the case of high print speed printing speed
Encourage and start to vibrate.The vibration can cause the contact loss between roller and thus cause printing to be interrupted.
In order to reach print speed printing speed as high as possible, thus it is desirable that, suppress flexural vibrations as far as possible.
The content of the invention
The task of the present invention is that reducing print roller tends to the tendency of flexural vibrations.
The present invention solves problem by the print roller of following types, and it at least has two sections, at least twoth area
Section extends along longitudinal axis, and at least two section is so decoupled each other in circumferential direction, to cause the curved of print roller
Qu Zhendong causes the shearing motion between outer roller and the section, wherein, at least two sections are so connected with outer roller, so that
The power that the shearing motion causes to damp flexural vibrations is obtained, wherein, prestress device is arranged for applying prestress to institute
State on section.
It is an advantage to be able to effectively damp flexural vibrations in the present invention.By direct between the section and outer roller
Or indirect contact causes following frictional force, the frictional force changes the shearing motion of outer roller and the section relative to each other
Into heat.Frictional force between outer roller and the section is bigger, damps flexural vibrations then stronglyer.But if the power is excessive,
The relative motion being then no longer result between outer roller and the section.Can so it be adjusted the section by prestress device
The power of outer roller is compressed, to reach maximum damping action.
The additional advantage of the present invention is that print roller relatively simply constructs.This enables the print roller simply
Manufacture and be robust.In addition, additional bearing is not necessarily, so as to can easily be filled according to the print roller of the present invention
It is fitted in existing printing machine.
Within the scope of this specification, outer roller is interpreted as the part of print roller, and the part is loaded with printing as former state.It is possible
It is, but non-essential is that outer roller includes rubber cylinder or photosensitive resin plate.
Print roller can be plate cylinder, counter-pressure cylinders, anilox roll and/or submerged roll.When print roller is plate cylinder,
The present invention is particularly advantageous.
Following characteristics, i.e. two section is decoupled each other in circumferential direction to be especially understood to, and two sections are in circumferential side
The elasticity that two ends that the elastic constant of upward relative motion relative to each other is up to the section move relative to each other is often
Several 1/10th.It is complete decoupled certainly impossible.Conclusive to be, two adjacent sections are in circumferential direction
On motion toward each other or away from each other coupling ratio described in section coupling of two ends along longitudinal axis it is weak
It is more.By this way, the flexural vibrations of print roller cause especially strong shearing motion between the section and outer roller.
It can realize and a preferred embodiment is shown, the section extends to from an axial end portion of outer roller
Opposed end.It is possible that section is made up of sub-segments, the sub-segments are connected to each other.But when connecting portion causes to subtract
During Weak link, this is less favourable.
Prestress device should especially be understood to following devices, and the section can be realized by means of described device
Exert a force on outer roller, this causes damping force.It can realize and a preferred embodiment is shown, the section is magnetic
Property and outer roller be ferromagnetic.In this case, prestress device and the section are same objects.
Preferably, the section is made up of by metal, for example steel.
Advantageously, outer roller and the section are in direct contact with one another, so as to which flexural vibrations cause the section in outer roller
Fricting movement on inner side.But alternatively it is also possible that the section is connected with outer roller by thin flexible member, as long as really
The flexural vibrations of guarantor's print roller cause the sufficiently large shearing force in the element internal.
Preferably, the section is the part of the sleeve of fluting.Particularly advantageous here is, the sleeve has slit,
The slit extends at least substantially parallel to the longitudinal axis of outer roller.This can especially be understood to, although the possible and phase
To hope, the slit extends parallel to the longitudinal axis of outer roller, however it is also possible that, the slit is relative to the longitudinal axis
Line extends under certain angle.Such as the angle is less than 5 °.Furthermore, it is possible to the slit is not point-blank to extend, and
Be such as arc extend.But this slit can it is more difficult manufacture and may cause on the section it is axially extending compared with
Small rigidity.
Particularly advantageously, the section is bearing directly against on the inner surface of outer roller.In this case, the area is caused
Section and outer roller rub directly with one another.Particularly advantageously, outer roller is made up of on its position with segments contact described in area metal.
Metal-metal frictional connection causes the big flexural vibrations of already present power.
Advantageously, prestress device has hydraulic buckling pad (Hydrodehnkissen) and/or magnet.Hydraulic pressure is swollen
Swollen pad simply constructs and can apply big pressure.
Preferably, the section extends at least the 80% of the axial length of outer roller.It is achieved in, flexural vibrations cause
The king-sized shearing motion between the section and outer roller, so as to which the power of synthesis particularly efficiently damps flexural vibrations.
It is the flexible printing machine with the print roller according to the present invention in addition according to the present invention.Phase is used in flexible printing
To elongated print roller, the print roller tends to flexural vibrations, so as to use the present invention with particular advantage.
Brief description of the drawings
The present invention is explained below according to accompanying drawing.In accompanying drawing：
Fig. 1 a show the stereogram and cross-sectional view of the first print roller according to the present invention,
Fig. 1 b show the stereogram and cross-sectional view of the second print roller according to the present invention,
Fig. 1 c show the stereogram and cross-sectional view of the second print roller according to the present invention,
Fig. 2 a show the longitudinal sectional drawing of the print roller in the state of zero load according to the present invention,
Fig. 2 b show the print roller in the case of load according to Fig. 2 a,
Fig. 3 a show the on the one hand system damping accessible in theory in the case of with the section according to the present invention
With the comparison of in theory accessible system damping of the another aspect in the case of without the section, and
Fig. 3 b are shown according to the frequecy characteristic between the print roller of the present invention and traditional print roller.
Embodiment
Fig. 1 shows the print roller 10 according to the present invention, and the print roller has hollow outer roller 12, and the outer roller has longitudinal direction
Axis L12.Prestress device 14 is arranged in the outer roller 12, the prestress device includes multiple permanent magnets 16.1,
16.2 ....By means of the permanent magnet by section 18.1,18.2 ... from the interior inner surface 20 for compressing outer roller 12.Prestress
Prestressing force F is applied on section 18 by device 14 by this way, wherein, prestressing force F is outwardly.
As understood as upper diagram, longitudinal axes L extension of the section 18 along outer roller 12.In two sections, examples
As arranged a slit 22.1 between section 18.1 and 18.2.Thus adjacent section is mechanically decoupled each other.That is, such as
Section 18 is not compressed outer roller by fruit prestressing force F, then needs only to small power, so that the section is in circumferential direction toward each other
Motion.Otherwise, it is necessary to much bigger power, particularly 10 times or bigger power, so that first end 22 is relative to the second end
24 skew identical amounts, wherein, the second end 24 is on longitudinal axes L12It is opposed with first end 22.
Fig. 1 b show the relative embodiment of the print roller 10 with axial length D according to the present invention, in the reality
Apply in mode, section 18 is the part of the sleeve 26 of fluting.Therefore, section 18.i (i=1,2,3 ...) exists in first end 22
Converge in footing region 28.The section is correspondingly not present in footing region 28.The coupling of adjacent section is stronger, then phase
Point and the spacing in footing region 28 on adjacent section is smaller, and coupling is observed on the spacing.Thus, adjacent section
18.1,18.2 on the point P1 with the spacing big with footing region 28 and P2 coupling ratio on small with footing region 28
Spacing point P3 and P4 coupling it is strong.
Prestress device 14 is including clamping ring 30.1,30.2,30.3 according to Fig. 1 b configuration.Such as lower illustration
As going out, clamping ring 30.1 is included for example in the clamping device 32 of fishbolt form.Clamping can be made according to fishbolt
Ring 30.1 is expanded, so as to change prestressing force F.Other clamping rings 30.2,30.3 construct in the same manner.
Fig. 1 c show an other embodiment of the print roller 10 according to the present invention, wherein, prestress device 14
With hydraulic buckling pad 34.1,34.2 ..., hydraulic buckling advance expenditure support is on inner cylinder 36 and by schematically showing
Pressure source 38 is loaded with pressure fluid.
Print roller 10 includes the other section in support section 44.1,44.2 ... form, wherein in the horizontal stroke according to Fig. 2 a
It can be seen that support section 44.1 and 44.7 in sectional view.Support section 44.i is the part of second sleeve 42.Prestress fills
Put 14 and be arranged so that the prestress device will support section 44.1 radially outwardly to compress section 18.Therefore, second set
Cylinder 42 is arranged with one heart and in the sleeve inner relative to sleeve 26.
Fig. 2 a are schematically shown has outer roller 12, section 18.1,18.7 and pre-add according to the present invention according to Fig. 1 c
Answer the print roller 10 of power apparatus 14.Fig. 1 c illustrate the section according to the line A-A for coming from Fig. 2 a with bottom.Print roller 10 is being illustrated
The bearing 40.1 shown to property, can rotationally it support in 40.2.Fig. 2 a show a case that no external force acts on print roller 10.
Fig. 2 b show a case that biasing force Fa acts on outer roller 12 on longitudinal axes L middle ground.Print roller 10 is thus
Bending.The bending is greatly exaggerated to show.Because the bending causes section 18.i to carry out shearing motion relative to outer roller 12.This
Outside, support section 44.i moves relative to section 18.i and also relative to outer roller 12 if necessary.Thus frictional force F is causedR, 1,
The frictional force acts on section 18.i outer surface.The frictional force FR, 1Cause to react on biasing force FaPower.
In addition, produce the second frictional force F between section 44.i and section 18.i is supportedR, 2, second frictional force equally leads
Cause reacts on biasing force FaPower.By section 18.i relative to the shearing motion of outer roller 12 heat and caused by, will print
The vibrational energy of roller 10 is taken away, so as to damp flexural vibrations.
It is noted that in order to which identical Numerical Index i is simply only used only, it is of course possible to but non-essential
It is that support section is distinguishable from one another with different numeric suffix.It is particularly likely to, the numeral and the number of support section of the section
Word is different.
Fig. 3 a show it is being computed, in theory it is accessible, in the area for the print roller without support section
System damping frictional damping constant, in relative unit of sliding friction between section and outer roller.As can be seen that in this feelings
In the setting of section of form of sleeve of fluting, significantly ratio is such as arranged in the set without slit of the cylinder shape in outer roller in condition
Cylinder is more efficient.It can furthermore be seen that the maximum of maximum accessible damping experience part, in this case about 100Ns/
nm.Because prestress device can be conditioned according to a preferred embodiment, that is to say, that prestressing force can be changed,
So optimal prestressing force can be obtained in trial test.
Fig. 3 b are shown by the amount of deflection of print roller 10 on the frequecy characteristic in the form of the frequency f of flexural vibrations.As can be seen that
Small 10 times of the amount of deflection around resonant frequency can be reached.
Reference numerals list
10 print rollers
12 outer rollers
14 prestress devices
16 permanent magnets
18 sections
20 surfaces
22 first ends
24 the second ends
26 sleeves
28 footing regions
30 clamping rings
32 clamping devices
34 hydraulic buckling pads
36 inner cylinders
38 pressure sources
40 bearings
42 second sleeves
44 support sections
LRLongitudinal axis
F prestressing force
FaBiasing force
FR, 1Frictional force
Claims (8)
1. a kind of print roller (10), particularly flexible printing print roller, it has
(a) hollow outer roller (12), the outer roller have longitudinal axis (L), and
(b) be arranged in it is in the outer roller (12), for apply a prestressing force (F) prestress device (14), it is described it is pre- should
Power has the force component being radially outward directed,
It is characterized in that
(c) at least two sections (18), at least two section
- extend along the longitudinal axis (L),
- decoupled each other in circumferential direction,
- it is arranged so that the flexural vibrations of the print roller (10) cause between the outer roller (12) and the section (18)
Shearing motion, and
- be connected with the outer roller (12), to cause the shearing motion to cause the power of the damping flexural vibrations,
(d) wherein, the prestress device (14) is disposed for the prestressing force (F) being applied to the section (18)
On.
2. print roller (10) according to claim 1, it is characterised in that the section (18) is the sleeve (26) of a fluting
Part.
3. print roller according to any one of the preceding claims, it is characterised in that the section (18) by metal, especially
It is that steel is formed.
4. print roller (10) according to any one of the preceding claims, it is characterised in that the section (18) abuts in
On the inner surface (20) of the outer roller (12).
5. print roller (10) according to any one of the preceding claims, it is characterised in that the prestress device
(14) there is hydraulic buckling pad (34) and/or magnet (16).
6. print roller (10) according to any one of the preceding claims, it is characterised in that the section (18) is described
Extend at least the 80% of the axial length (D) of outer roller (12).
7. print roller (10) according to any one of the preceding claims, it is characterised in that multiple support sections are set
(44), wherein, the prestress device (14) is provided for the support section (44) radially outwardly compressing the area
Section (18).
8. a kind of flexible printing machine, it has print roller according to any one of the preceding claims (10).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015204496.3 | 2015-03-12 | ||
| DE102015204496.3A DE102015204496B4 (en) | 2015-03-12 | 2015-03-12 | Pressure roller, in particular flexographic printing roller |
| PCT/EP2016/054931 WO2016142387A1 (en) | 2015-03-12 | 2016-03-08 | Impression roll; in particular flexographic impression roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107438521A true CN107438521A (en) | 2017-12-05 |
| CN107438521B CN107438521B (en) | 2019-06-21 |
Family
ID=55485003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680014701.8A Expired - Fee Related CN107438521B (en) | 2015-03-12 | 2016-03-08 | Print roller, particularly flexible printing roller |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3268223B1 (en) |
| CN (1) | CN107438521B (en) |
| DE (1) | DE102015204496B4 (en) |
| WO (1) | WO2016142387A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021006A1 (en) * | 1979-07-03 | 1981-01-07 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Device for suppressing the flexion oscillations in rotary offset presses |
| EP0519301A1 (en) * | 1991-06-15 | 1992-12-23 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | Printing machine cylinder with vibration damping means |
| CN201056081Y (en) * | 2007-06-21 | 2008-05-07 | 宋宝三 | Printing roller of paperboard printing machine |
| CN101450374A (en) * | 2008-12-23 | 2009-06-10 | 中国重型机械研究院 | Eletromagnetic stirring supporting roller |
| JP2012056256A (en) * | 2010-09-10 | 2012-03-22 | Bridgestone Corp | Mold for molding magnet roller and method of manufacturing magnet roller |
| US20120301605A1 (en) * | 2011-05-26 | 2012-11-29 | Samsung Electro-Mechanics Co., Ltd. | Gravure printing engraving roll and manufacturing method therof |
| CN203030106U (en) * | 2013-01-18 | 2013-07-03 | 宁波市镇海怡福莱文化创意有限公司 | Magnetic roller |
| CN203157312U (en) * | 2013-03-18 | 2013-08-28 | 济南丰利彩印有限公司 | Print roller bracket for color printing equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2922585B1 (en) * | 1979-06-02 | 1980-12-11 | Krupp Ag Huettenwerke | Vibration absorber for resonance vibrations of rotating bodies |
| FR2847847B1 (en) * | 2002-11-29 | 2005-01-28 | Epsilon Composite Sarl | PROCESS FOR MANUFACTURING A TUBE OF COMPOSITE MATERIAL OF HIGH STIFFNESS, AND TUBE OBTAINED |
| US20080000363A1 (en) * | 2006-06-29 | 2008-01-03 | Metso Paper, Inc. | Adjustable Anti-Barring Device for Calender Rolls |
| DE102009055767A1 (en) * | 2009-11-25 | 2011-06-01 | Fischer & Krecke Gmbh | Printing cylinder arrangement for a rotary printing machine |
| DE102010015108A1 (en) * | 2010-04-16 | 2011-10-20 | Goebel Gmbh | Rotary cylinder for a processing machine |
-
2015
- 2015-03-12 DE DE102015204496.3A patent/DE102015204496B4/en not_active Expired - Fee Related
-
2016
- 2016-03-08 EP EP16708425.0A patent/EP3268223B1/en not_active Not-in-force
- 2016-03-08 WO PCT/EP2016/054931 patent/WO2016142387A1/en active Application Filing
- 2016-03-08 CN CN201680014701.8A patent/CN107438521B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021006A1 (en) * | 1979-07-03 | 1981-01-07 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Device for suppressing the flexion oscillations in rotary offset presses |
| EP0519301A1 (en) * | 1991-06-15 | 1992-12-23 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | Printing machine cylinder with vibration damping means |
| CN201056081Y (en) * | 2007-06-21 | 2008-05-07 | 宋宝三 | Printing roller of paperboard printing machine |
| CN101450374A (en) * | 2008-12-23 | 2009-06-10 | 中国重型机械研究院 | Eletromagnetic stirring supporting roller |
| JP2012056256A (en) * | 2010-09-10 | 2012-03-22 | Bridgestone Corp | Mold for molding magnet roller and method of manufacturing magnet roller |
| US20120301605A1 (en) * | 2011-05-26 | 2012-11-29 | Samsung Electro-Mechanics Co., Ltd. | Gravure printing engraving roll and manufacturing method therof |
| CN203030106U (en) * | 2013-01-18 | 2013-07-03 | 宁波市镇海怡福莱文化创意有限公司 | Magnetic roller |
| CN203157312U (en) * | 2013-03-18 | 2013-08-28 | 济南丰利彩印有限公司 | Print roller bracket for color printing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3268223B1 (en) | 2018-12-12 |
| WO2016142387A1 (en) | 2016-09-15 |
| DE102015204496B4 (en) | 2017-10-05 |
| DE102015204496A1 (en) | 2016-09-15 |
| CN107438521B (en) | 2019-06-21 |
| EP3268223A1 (en) | 2018-01-17 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 Termination date: 20210308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |